text: /*
   * Copyright (C) 2005-2011 MaNGOS <http://getmangos.com/>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  #ifndef MANGOS_GRIDNOTIFIERSIMPL_H
  #define MANGOS_GRIDNOTIFIERSIMPL_H
  
  #include "GridNotifiers.h"
  #include "WorldPacket.h"
  #include "Corpse.h"
  #include "Player.h"
  #include "UpdateData.h"
  #include "CreatureAI.h"
  #include "SpellAuras.h"
  #include "DBCEnums.h"
  
  template<class T>
  inline void MaNGOS::VisibleNotifier::Visit(GridRefManager<T> &m)
  {
      for(typename GridRefManager<T>::iterator iter = m.begin(); iter != m.end(); ++iter)
      {
          i_camera.UpdateVisibilityOf(iter->getSource(), i_data, i_visibleNow);
          i_clientGUIDs.erase(iter->getSource()->GetGUID());
      }
  }
  
  inline void MaNGOS::ObjectUpdater::Visit(CreatureMapType &m)
  {
      for(CreatureMapType::iterator iter = m.begin(); iter != m.end(); ++iter)
      {
          WorldObject::UpdateHelper helper(iter->getSource());
          helper.Update(i_timeDiff);
      }
  }
  
  inline void PlayerCreatureRelocationWorker(Player* pl, Creature* c)
  {
      // Creature AI reaction
      if (!c->hasUnitState(UNIT_STAT_LOST_CONTROL))
      {
          if (c->AI() && c->AI()->IsVisible(pl) && !c->IsInEvadeMode())
              c->AI()->MoveInLineOfSight(pl);
      }
  }
  
  inline void CreatureCreatureRelocationWorker(Creature* c1, Creature* c2)
  {
      if (!c1->hasUnitState(UNIT_STAT_LOST_CONTROL))
      {
          if (c1->AI() && c1->AI()->IsVisible(c2) && !c1->IsInEvadeMode())
              c1->AI()->MoveInLineOfSight(c2);
      }
  
      if (!c2->hasUnitState(UNIT_STAT_LOST_CONTROL))
      {
          if (c2->AI() && c2->AI()->IsVisible(c1) && !c2->IsInEvadeMode())
              c2->AI()->MoveInLineOfSight(c1);
      }
  }
  
  inline void MaNGOS::PlayerRelocationNotifier::Visit(CreatureMapType &m)
  {
      if (!i_player.isAlive() || i_player.IsTaxiFlying())
          return;
  
      for(CreatureMapType::iterator iter = m.begin(); iter != m.end(); ++iter)
      {
          Creature* c = iter->getSource();
          if (c->isAlive() && !c->isNotifySheduled(AI_Notify_Execution))
              PlayerCreatureRelocationWorker(&i_player, c);
      }
  }
  
  template<>
  inline void MaNGOS::CreatureRelocationNotifier::Visit(PlayerMapType &m)
  {
      if (!i_creature.isAlive())
          return;
  
      for(PlayerMapType::iterator iter=m.begin(); iter != m.end(); ++iter)
      {
          Player* player = iter->getSource();
          if (player->isAlive() && !player->IsTaxiFlying() && !player->isNotifySheduled(AI_Notify_Execution))
              PlayerCreatureRelocationWorker(player, &i_creature);
      }
  }
  
  template<>
  inline void MaNGOS::CreatureRelocationNotifier::Visit(CreatureMapType &m)
  {
      if (!i_creature.isAlive())
          return;
  
      for(CreatureMapType::iterator iter = m.begin(); iter != m.end(); ++iter)
      {
          Creature* c = iter->getSource();
          if (c != &i_creature && c->isAlive() && !c->isNotifySheduled(AI_Notify_Execution))
              CreatureCreatureRelocationWorker(c, &i_creature);
      }
  }
  
  inline void MaNGOS::DynamicObjectUpdater::VisitHelper(Unit* target)
  {
      if (!target->isAlive() || target->IsTaxiFlying() )
          return;
  
      if (target->GetTypeId() == TYPEID_UNIT && ((Creature*)target)->IsTotem())
          return;
  
      if (!i_dynobject.IsWithinDistInMap(target, i_dynobject.GetRadius()))
          return;
  
      //Check targets for not_selectable unit flag and remove
      if (target->HasFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE | UNIT_FLAG_NOT_SELECTABLE | UNIT_FLAG_OOC_NOT_ATTACKABLE))
          return;
  
      // Evade target
      if (target->GetTypeId()==TYPEID_UNIT && ((Creature*)target)->IsInEvadeMode())
          return;
  
      //Check player targets and remove if in GM mode or GM invisibility (for not self casting case)
      if (target->GetTypeId() == TYPEID_PLAYER && target != i_check && (((Player*)target)->isGameMaster() || ((Player*)target)->GetVisibility() == VISIBILITY_OFF))
          return;
  
      if (i_check->GetTypeId() == TYPEID_PLAYER )
      {
          if (i_check->IsFriendlyTo( target ))
              return;
      }
      else
      {
          if (!i_check->IsHostileTo( target ))
              return;
      }
  
      if (i_dynobject.IsAffecting(target))
          return;
  
      SpellEntry const *spellInfo = sSpellStore.LookupEntry(i_dynobject.GetSpellId());
      SpellEffectIndex eff_index  = i_dynobject.GetEffIndex();
  
      // Check target immune to spell or aura
      if (target->IsImmuneToSpell(spellInfo) || target->IsImmuneToSpellEffect(spellInfo, eff_index))
          return;
  
      // Apply PersistentAreaAura on target
      // in case 2 dynobject overlap areas for same spell, same holder is selected, so dynobjects share holder
      SpellAuraHolder *holder = target->GetSpellAuraHolder(spellInfo->Id, i_dynobject.GetCaster()->GetGUID());
  
      if (holder)
      {
          if (Aura* aura = holder->GetAuraByEffectIndex(eff_index))
          {
              // already exists, refresh duration
              if (aura->GetAuraDuration() >=0 && uint32(aura->GetAuraDuration()) < i_dynobject.GetDuration())
              {
                  aura->SetAuraDuration(i_dynobject.GetDuration());
                  holder->SendAuraUpdate(false);
              }
          }
          else
          {
              PersistentAreaAura* Aur = new PersistentAreaAura(spellInfo, eff_index, NULL, holder, target, i_dynobject.GetCaster());
              holder->AddAura(Aur, eff_index);
              target->AddAuraToModList(Aur);
              holder->SetInUse(true);
              Aur->ApplyModifier(true,true);
              holder->SetInUse(false);
          }
      }
      else
      {
          holder = CreateSpellAuraHolder(spellInfo, target, i_dynobject.GetCaster());
          PersistentAreaAura* Aur = new PersistentAreaAura(spellInfo, eff_index, NULL, holder, target, i_dynobject.GetCaster());
          holder->AddAura(Aur, eff_index);
          target->AddSpellAuraHolder(holder);
      }
  
      i_dynobject.AddAffected(target);
  }
  
  template<>
  inline void MaNGOS::DynamicObjectUpdater::Visit(CreatureMapType  &m)
  {
      for(CreatureMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
          VisitHelper(itr->getSource());
  }
  
  template<>
  inline void MaNGOS::DynamicObjectUpdater::Visit(PlayerMapType  &m)
  {
      for(PlayerMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
          VisitHelper(itr->getSource());
  }
  
  // SEARCHERS & LIST SEARCHERS & WORKERS
  
  // WorldObject searchers & workers
  
  template<class Check>
  void MaNGOS::WorldObjectSearcher<Check>::Visit(GameObjectMapType &m)
  {
      // already found
      if (i_object)
          return;
  
      for(GameObjectMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
      {
          if (!itr->getSource()->InSamePhase(i_phaseMask))
              continue;
  
          if (i_check(itr->getSource()))
          {
              i_object = itr->getSource();
              return;
          }
      }
  }
  
  template<class Check>
  void MaNGOS::WorldObjectSearcher<Check>::Visit(PlayerMapType &m)
  {
      // already found
      if (i_object)
          return;
  
      for(PlayerMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
      {
          if (!itr->getSource()->InSamePhase(i_phaseMask))
              continue;
  
          if (i_check(itr->getSource()))
          {
              i_object = itr->getSource();
              return;
          }
      }
  }
  
  template<class Check>
  void MaNGOS::WorldObjectSearcher<Check>::Visit(CreatureMapType &m)
  {
      // already found
      if (i_object)
          return;
  
      for(CreatureMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
      {
          if (!itr->getSource()->InSamePhase(i_phaseMask))
              continue;
  
          if (i_check(itr->getSource()))
          {
              i_object = itr->getSource();
              return;
          }
      }
  }
  
  template<class Check>
  void MaNGOS::WorldObjectSearcher<Check>::Visit(CorpseMapType &m)
  {
      // already found
      if (i_object)
          return;
  
      for(CorpseMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
      {
          if (!itr->getSource()->InSamePhase(i_phaseMask))
              continue;
  
          if (i_check(itr->getSource()))
          {
              i_object = itr->getSource();
              return;
          }
      }
  }
  
  template<class Check>
  void MaNGOS::WorldObjectSearcher<Check>::Visit(DynamicObjectMapType &m)
  {
      // already found
      if (i_object)
          return;
  
      for(DynamicObjectMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
      {
          if (!itr->getSource()->InSamePhase(i_phaseMask))
              continue;
  
          if (i_check(itr->getSource()))
          {
              i_object = itr->getSource();
              return;
          }
      }
  }
  
  template<class Check>
  void MaNGOS::WorldObjectListSearcher<Check>::Visit(PlayerMapType &m)
  {
      for(PlayerMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
          if (itr->getSource()->InSamePhase(i_phaseMask))
              if (i_check(itr->getSource()))
                  i_objects.push_back(itr->getSource());
  }
  
  template<class Check>
  void MaNGOS::WorldObjectListSearcher<Check>::Visit(CreatureMapType &m)
  {
      for(CreatureMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
          if (itr->getSource()->InSamePhase(i_phaseMask))
              if (i_check(itr->getSource()))
                  i_objects.push_back(itr->getSource());
  }
  
  template<class Check>
  void MaNGOS::WorldObjectListSearcher<Check>::Visit(CorpseMapType &m)
  {
      for(CorpseMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
          if (itr->getSource()->InSamePhase(i_phaseMask))
              if (i_check(itr->getSource()))
                  i_objects.push_back(itr->getSource());
  }
  
  template<class Check>
  void MaNGOS::WorldObjectListSearcher<Check>::Visit(GameObjectMapType &m)
  {
      for(GameObjectMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
          if (itr->getSource()->InSamePhase(i_phaseMask))
              if (i_check(itr->getSource()))
                  i_objects.push_back(itr->getSource());
  }
  
  template<class Check>
  void MaNGOS::WorldObjectListSearcher<Check>::Visit(DynamicObjectMapType &m)
  {
      for(DynamicObjectMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
          if (itr->getSource()->InSamePhase(i_phaseMask))
              if (i_check(itr->getSource()))
                  i_objects.push_back(itr->getSource());
  }
  
  // Gameobject searchers
  
  template<class Check>
  void MaNGOS::GameObjectSearcher<Check>::Visit(GameObjectMapType &m)
  {
      // already found
      if (i_object)
          return;
  
      for(GameObjectMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
      {
          if (!itr->getSource()->InSamePhase(i_phaseMask))
              continue;
  
          if (i_check(itr->getSource()))
          {
              i_object = itr->getSource();
              return;
          }
      }
  }
  
  template<class Check>
  void MaNGOS::GameObjectLastSearcher<Check>::Visit(GameObjectMapType &m)
  {
      for(GameObjectMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
      {
          if (!itr->getSource()->InSamePhase(i_phaseMask))
              continue;
  
          if (i_check(itr->getSource()))
              i_object = itr->getSource();
      }
  }
  
  template<class Check>
  void MaNGOS::GameObjectListSearcher<Check>::Visit(GameObjectMapType &m)
  {
      for(GameObjectMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
          if (itr->getSource()->InSamePhase(i_phaseMask))
              if (i_check(itr->getSource()))
                  i_objects.push_back(itr->getSource());
  }
  
  // Unit searchers
  
  template<class Check>
  void MaNGOS::UnitSearcher<Check>::Visit(CreatureMapType &m)
  {
      // already found
      if (i_object)
          return;
  
      for(CreatureMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
      {
          if (!itr->getSource()->InSamePhase(i_phaseMask))
              continue;
  
          if (i_check(itr->getSource()))
          {
              i_object = itr->getSource();
              return;
          }
      }
  }
  
  template<class Check>
  void MaNGOS::UnitSearcher<Check>::Visit(PlayerMapType &m)
  {
      // already found
      if (i_object)
          return;
  
      for(PlayerMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
      {
          if (!itr->getSource()->InSamePhase(i_phaseMask))
              continue;
  
          if (i_check(itr->getSource()))
          {
              i_object = itr->getSource();
              return;
          }
      }
  }
  
  template<class Check>
  void MaNGOS::UnitLastSearcher<Check>::Visit(CreatureMapType &m)
  {
      for(CreatureMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
      {
          if (!itr->getSource()->InSamePhase(i_phaseMask))
              continue;
  
          if (i_check(itr->getSource()))
              i_object = itr->getSource();
      }
  }
  
  template<class Check>
  void MaNGOS::UnitLastSearcher<Check>::Visit(PlayerMapType &m)
  {
      for(PlayerMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
      {
          if (!itr->getSource()->InSamePhase(i_phaseMask))
              continue;
  
          if (i_check(itr->getSource()))
              i_object = itr->getSource();
      }
  }
  
  template<class Check>
  void MaNGOS::UnitListSearcher<Check>::Visit(PlayerMapType &m)
  {
      for(PlayerMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
          if (itr->getSource()->InSamePhase(i_phaseMask))
              if (i_check(itr->getSource()))
                  i_objects.push_back(itr->getSource());
  }
  
  template<class Check>
  void MaNGOS::UnitListSearcher<Check>::Visit(CreatureMapType &m)
  {
      for(CreatureMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
          if (itr->getSource()->InSamePhase(i_phaseMask))
              if (i_check(itr->getSource()))
                  i_objects.push_back(itr->getSource());
  }
  
  // Creature searchers
  
  template<class Check>
  void MaNGOS::CreatureSearcher<Check>::Visit(CreatureMapType &m)
  {
      // already found
      if (i_object)
          return;
  
      for(CreatureMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
      {
          if (!itr->getSource()->InSamePhase(i_phaseMask))
              continue;
  
          if (i_check(itr->getSource()))
          {
              i_object = itr->getSource();
              return;
          }
      }
  }
  
  template<class Check>
  void MaNGOS::CreatureLastSearcher<Check>::Visit(CreatureMapType &m)
  {
      for(CreatureMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
      {
          if (!itr->getSource()->InSamePhase(i_phaseMask))
              continue;
  
          if (i_check(itr->getSource()))
              i_object = itr->getSource();
      }
  }
  
  template<class Check>
  void MaNGOS::CreatureListSearcher<Check>::Visit(CreatureMapType &m)
  {
      for(CreatureMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
          if (itr->getSource()->InSamePhase(i_phaseMask))
              if (i_check(itr->getSource()))
                  i_objects.push_back(itr->getSource());
  }
  
  template<class Check>
  void MaNGOS::PlayerSearcher<Check>::Visit(PlayerMapType &m)
  {
      // already found
      if (i_object)
          return;
  
      for(PlayerMapType::iterator itr = m.begin(); itr != m.end(); ++itr)
      {
          if (!itr->getSource()->InSamePhase(i_phaseMask))
              continue;
  
          if (i_check(itr->getSource()))
          {
              i_object = itr->getSource();
              return;
          }
      }
  }
  
  template<class Builder>
  void MaNGOS::LocalizedPacketDo<Builder>::operator()( Player* p )
  {
      int32 loc_idx = p->GetSession()->GetSessionDbLocaleIndex();
      uint32 cache_idx = loc_idx+1;
      WorldPacket* data;
  
      // create if not cached yet
      if (i_data_cache.size() < cache_idx+1 || !i_data_cache[cache_idx])
      {
          if (i_data_cache.size() < cache_idx+1)
              i_data_cache.resize(cache_idx+1);
  
          data = new WorldPacket(SMSG_MESSAGECHAT, 200);
  
          i_builder(*data, loc_idx);
  
          i_data_cache[cache_idx] = data;
      }
      else
          data = i_data_cache[cache_idx];
  
      p->SendDirectMessage(data);
  }
  
  template<class Builder>
  void MaNGOS::LocalizedPacketListDo<Builder>::operator()( Player* p )
  {
      int32 loc_idx = p->GetSession()->GetSessionDbLocaleIndex();
      uint32 cache_idx = loc_idx+1;
      WorldPacketList* data_list;
  
      // create if not cached yet
      if (i_data_cache.size() < cache_idx+1 || i_data_cache[cache_idx].empty())
      {
          if (i_data_cache.size() < cache_idx+1)
              i_data_cache.resize(cache_idx+1);
  
          data_list = &i_data_cache[cache_idx];
  
          i_builder(*data_list, loc_idx);
      }
      else
          data_list = &i_data_cache[cache_idx];
  
      for(size_t i = 0; i < data_list->size(); ++i)
          p->SendDirectMessage((*data_list)[i]);
  }
  
  #endif                                                      // MANGOS_GRIDNOTIFIERSIMPL_H
  